Ventilator



Nov. 16 192s. l 1,607,092

B. R. H. LYON vNTILATon Filed July 20, 1925 ATTORNEYS Fatented Nov. l5,V i926.

BABET R. HAND LYON,

OF CHICAGG, ILLINOIS, ASSIGNOR. `OF ONE-ALF TO TAYLOR LYON', OF CHICAGO, ILLINOIS.

DE l Wrrr VENTILATOR.

Application led July 20, r1925. Serial No. 44,834.

My invention relates to improvements in i ventilators, and it consists in the'combinations, constructions, and arrangements here.-

in described and claimed. L

The standard ventilator for theaters and the like projects quite a distance. above' the surface of the floor and itis therefore necessary to use what is callled a thimble l.to make an opening in the fioor before the con.- crete has hardened. This thinible lies flush with the surface of the `iioor so asto permit trucks and the like to be moved across the surface of the floor without in any way damaging the thimbles.

After the vconcrete has set and after all necessary trucking across the surface of the floor has been accomplished7 the thimbles are removed and the standard ventilator is inserted in the opening in the concrete made by the thimbles. 1

The principal object of my invention is to provide a ventilator Vthat may be disposed in place before the concrete is poured, thus doing away with 'the necessity of thimble-s.

To this end I have provided the ventilator with a very narrow Harige that projects above the sur-face of the iioor whereby the necessary trucking across the surfaceof the floor may be done without in any way affecting the ventilator. lAfter thistrucking has been done, the remaining parts of the ventilator are secured to the part already embedded in the lcement or concrete. In this v,way I provide a'ventilatorwhich outs down the amount of labor necessary to install the ventilatonto a minimum.

A furtherv object of my invention isv to provide a ventilator of the character described which is radjustable so as to regu-1 late the flow ofair through the ventilator,

the means for adjusting the ventilator be ing adapted to lock the ventilator 'in adj usted y position.

A further object of my lnventlon is to provide a ventilatorl of the character described inrwhich the air is discharged unvdervthe adjoining seats instead of against the feet and ankles of people occupying the seat underwhich the ventilator is disposed. Other objects and advantages will appear in thel following specification, and the novel feature-s of the invention willV be particularly pointed out in the appended claims;

My invention is iiiustrated in the accesi.E

panying drawings, forming. partof this application, in whichf f Figure l is a plan view, and Figure 2 is asection along the line 2f2 of Figure l. Y i i l In carrying kour my invention I provide a ventilator havingfabodyl portion A, with a cylindrical shaped portion 1, an outwardly extending flange 2 adapted to lie flush with the upper surface 3 of al concrete floor 1-, and an upwardly extending flange 5. The flangey 5 is very narrow V1n width y and thereyfore projects vonly a slight distanceabove the surface 3. The body portion A is disposed in place on the flooring, not shown,

before the concrete 4 is poured. A wooden disc, not shown, is disposed in the recess provided by the Hanges 2 andv 5. and prevents the concrete from iowing into the cyl- A inder l. The portion B of the ventilator is attached tothe portion A after all necessaryk accomplished. Y

xAs heretofore-stated, the flange 5 is very narrowiandtherefore permits trucks-to be moved'across the surface Sand floor without in any way interfering with the bodv trucking across the surfaceB` of the floor is portion A. ItY should bernoted that thuel body portion A'is a 'shell' having aV wall thickness of approaimately one-eighth of an inch. This shellr is strongfenoughto. withstand the weight of a truck in case. a truck should pass thereoven Furthernflore,l the flange 5 is of snch a narrow widthvthat it will permit the trucks to pass over the flange. In v.the standard ventilators the por tion disposed in the concrete extends to vsuch a height above the surface of the cement. or

concrete that it interferes 'with' the necessary trucking. rIt has therefore been necess'ary to insert thimbles in the concrete and leave these thimbles in place until the' time carne for vmounting the ventilators inthe iiooring. With the presentv device, however,y

this extra' labor is entirely done away with',

and furthermore, there is no necessity for providing thimbles. This is a vital feature--v of the device and is a distant improvement j t over standard ventilators.'E

The flange 5 is also provided'with for securing theportion B ofthe ventilator to the portion A. In the present form of the device, this part of the ventilator 'con-Y e @over e mit 1e secured means lilre.

to the flange`5 by means of screws or the Each endv of the cover 6 is secured in place by two screws so as to rigidly .secure the cover to the flange. The cover is cut away so as to provide openings 8 and `9 between the cover and the flange 5. These openings permit the air to flow out into the room of the theater.

The means for controlling the flow of air through the openings 8 and 9 consists in semi-circular shaped doors 10 and 1l. In the present form of the device these doors are pivotally secured to the same screws 7 that secure the cover to the flange 5. I have shown both doors inl closed position in Figure 2, but of course in operation either one or both of these doors will be opened partially or will be disposed in entirely open position.

The doors 10 and 11 may be adjusted by any means and I have shown for this purpose a series of threaded 'openings 12 in the cover 6 and a second series of threaded openings 13 also in the cover 6. The doors 10 and 11 carry screws 1li and 15 that are 'adapted to enter any one ot the threaded openings in the series 12 and 13 respectively.

F rom the foregoing description of the various parts of the device, the operation thereof may be readily understood. The doors 10 and ll'are moved with respect to the cover 6 until final adjustment of the ventilator is reached and then the screws 14 and 15 securely lock the doors to the cover. It should be noted that the doors 10 and 11 are disposed in suoli a position with respect to the seats in the theater as to direct the air under adjoin- A ing seats instead of 'against the feet and anlrles Vof the person occupying-the seat under which the ventilator is disposed. In this way all drafts are eliminated. If desired, the cover 6 may be shaped so as t'o havea cross section through the cover oval in shape or rectangular in shape instead of circular as is the case in the present instance. The device is extremely simple in construction and provides a novel means for entirelydoing away with the necessity of providing temporary thimbles. In Figure 2 I show the doors 10 the doors were movable on the inside of the cover, the air would flow through the spaces between the doors and cover, if .such lspaces in fact did eXist and would thus defeatthe purpose of the invention. In this wayI provide a simple means for overcoming any irregularities of shape inthe ventilator.

I claim:

LA ventilator comprising a body portion having an unobstructedr passageway therethrough, and being provided with a laterally extending flange portion at one end, and a rim at the edgesof said flange portion, a cover member rigidly secured to said rim and having arc-shaped end portions spaced from said rim and arc-shaped doors hinged to said rim'and arrangedV to Vbe swung with respect vto the endA portions Yof said cover member to vary the effective opening between .said cover member and said rim. c

2. A ventilator comprising a body portion having anA unobstructed passageway therethrough, and being provided Vwith a laterally extending flange portion at one end, and a rim at the edges of Vsaid flange portion, a cover member Vrigidly secured to said rim and having arc-shaped end portions spaced from said rim and arc-shaped doors hinged to said rim and arranged to be swung i ing said doors to said ends at various po- ,Y e

sitions.

BABET R. HAND LYON. 

